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Construction Construction |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Shaft Couplings
More
Shock-Absorbing Flexible Shaft Couplings


A strip of flexible spring steel wraps around the teeth of both hubs to absorb sharp, momentary load increases that can come from motor startups, emergency braking, or sudden impact with hard objects. When the shock load hits, the strip of spring steel (known as a grid) flexes to spread out the load. After the load passes, the grid straightens back out. They're commonly found in wire drawing and cutting machines, pulverizers, and mixers. Compared to spider couplings, jaw couplings, and other flexible shaft couplings, these handle higher torque while taking up less space. All have keyed bores to work with keyed shafts, which transmit higher torque with less slippage than round shafts.
A complete coupling consists of two hubs as well as a grid and cover assembly (all sold separately). The grid and cover assembly includes a spring steel grid, aluminum cover, rubber seals, and grease for lubrication. When ordering, please choose components that have the same manufacturer series number, otherwise the grid will not fit.
For technical drawings and 3-D models, click on a part number.
Grid and Cover Assemblies | ||||||||||||||||
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Hubs | Misalignment Capability | Replacement Grids | Replacement Seal Kits | |||||||||||||
O'all Lg. | OD | For Motion Type | Mfr. Series | For Shaft Dia. | Each | Parallel | Angular | Max. Speed, rpm | Max. Torque, in.-lbs. | Each | Each | Each | ||||
Black-Oxide Steel | ||||||||||||||||
For Keyed Shaft | ||||||||||||||||
3 1/2" | 5 19/32" | Continuous, Forward/Reverse, Start/Stop | Martin (1080T) | 2 7/8" | 0000000 | 0000000 | 0.016" | 0.25° | 3,600 | 18,150 | 00000000 | 0000000 | 00000000 | 0000000 | 00000000 | 000000 |
Additional Grease (14 oz. Grease Gun Cartridge) | 0000000 | Each | 000000 |
High-Speed Vibration-Damping Flexible Shaft Couplings


Use these gear-shaped couplings for high-speed and high-torque applications. A rubber center allows flexing so couplings can take on multiple types of misalignment while damping vibration and shock. With no metal-to-metal contact, there’s no need for lubrication. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.
A complete coupling consists of two hubs and one center (each component sold separately).
Hubs have a keyway, except hubs for 1/4" and 3/8" shaft dia. do not have a keyway.
For technical drawings and 3-D models, click on a part number.
Centers | |||||||||||||||
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Hubs | Misalignment Capability | ||||||||||||||
O'all Lg. | OD | For Motion Type | Material | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Axial | Temp. Range, °F | Material | Each | ||
5 1/16" | 6 23/64" | Continuous | Cast Iron | 2 7/8" | 000000 | 0000000 | 3,750 | 1,800 | 0.025" | 1° | 0.125" | -30° to 275° | TPE Rubber | 0000000 | 000000 |
5 11/16" | 7 1/2" | Continuous | Cast Iron | 2 7/8" | 000000 | 000000 | 3,600 | 2,875 | 0.025" | 1° | 0.125" | -30° to 275° | TPE Rubber | 0000000 | 00000 |
7 1/8" | 8 5/8" | Continuous | Cast Iron | 2 7/8" | 000000 | 000000 | 3,600 | 4,530 | 0.032" | 1° | 0.125" | -30° to 275° | EPDM Rubber | 0000000 | 000000 |